Sampson Gideon (February 1699 – 17 October 1762) was a Sephardic Jewish banker who was active in 18th-century London. Gideon is most prominently known for his financing of the Hanoverian-Whig government's suppression of the Jacobite Rising of 1745, subsequently becoming a trusted "adviser of the Government" who supported the passage of the Jew Bill of 1753. Historian James Picciotto, in his book Sketches of Anglo-Jewish History (1875) described Gideon as the "Rothschild of his day" and the "pillar of state credit".